Air Conditioner Service, Repair & Maintenance

HAMCO Heating & Cooling Ltd. has been serving the heating and air conditioning needs of Hamilton, Burlington, Oakville and surrounding areas since 1946. We have a wide range of air conditioners to fit your specific needs and budget and the expertise to install and service a wide range of cooling systems.

Our expert team of HVAC technicians are always ready to help with air conditioner service and repair, including annual preventative maintenance and inspections, emergency AC repairs, and necessary AC service. For accurate and cost-effective air conditioner repair service, trust HAMCO.

24/7 Repair

Emergency Air Conditioner Repair

Our experts at HAMCO are always available to you for emergency air conditioning service and repair. If you’re experiencing strange noises from your air conditioner, sudden inadequate cooling, or a full-blown AC breakdown, you can count on HAMCO!

Air Conditioner Maintenance

Air conditioner maintenance is a necessary part of owning an air conditioner. It’s imperative that you schedule annual preventative maintenance and service for your air conditioning to ensure that it’s working properly, running efficiently, and isn’t at risk of future breakdowns.

24/7 Repair

Signs You Need Air Conditioner Repair

Unusual Noises or Odours

Strange sounds or unpleasant smells coming from your air conditioner could indicate underlying issues that may require professional repair.

Uneven Cooling

Inconsistent temperatures throughout your home may signal a problem with your air conditioner’s functionality or distribution system.

Lack of Airflow

A complete lack of airflow or obstruction from the registers indicates a serious issue that needs prompt repair.

Warm Air from Vents

Feeling warm air blowing from your vents instead of cool air is a clear indication that your air conditioner is not operating as it should and requires immediate attention.

Spike in Energy Costs

If you’ve noticed a significant increase in your energy bills without any changes in your usage habits, your AC system may be in need of repair.

Refrigerant Leaks

Visible signs of refrigerant leaks, such as puddles or hissing sounds near the unit, should never be ignored.

HAMCO Protection Plans for Your Peace of Mind

Investing in a protection plan means spending a little now to save a lot later. 

A HAMCO Protection Plan offers peace of mind and financial security, ensuring your HVAC system is always cared for and maintained. For a small monthly fee, you receive annual inspections, tune-ups, and discounts on parts and labour.

A HAMCO Protection Plan helps you:

  • Extend the lifespan of your HVAC system
  • Avoid premature replacements and costly repairs 
  • Save on parts and labour
  • Keep your warranty valid
  • Access priority service in emergency situations
  • Secure unparalleled peace of mind

Book Air Conditioner Service Now

At HAMCO, we are committed to ‘doing it right’ the first time and ensure the full completion of jobs in a timely fashion.

Fill out the form below and one of our certified experts will follow up with you as soon as we can.

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    Riley O'Connell
    Riley O'Connell
    19:59 21 Jun 26
    Derek from Hamco recently serviced the ac and furnace in Burlington and was friendly, cooperative and courteous. Thank you!
    Deb Cliffe
    Deb Cliffe
    18:24 20 Jun 26
    Just had Derek out for furnace and AC maintenance. Once again very happy with Hamco service and continue to rate this company 5 Stars !!Hamco was able to respond to my... call within a couple of hours.Najim was thorough and fixed the problem. He was also friendly and courteous. I’ve been with Hamco about 5 years and continue to be happy with my decision to use this companyread more
    Janette Thompson
    Janette Thompson
    13:52 19 Jun 26
    Update: We just had our annual maintenance done and as usual, the booking and service were done efficiently and professionally. Cameron was pleasant and before servicing the... furnace and AC he was happy to answer a couple questions I had. Pleased once again with Hamco's service.We were recently faced with our 17-year-old furnace breaking down and beyond repair. Despite the extremely cold weather that resulted in a larger number of service needs for Hamco, Najim met with us in just over 24 hours, spent time accessing and explaining the situation and offering the best options for the needed replacement. He worked to get us up and running quickly with a Saturday install and left us with a space heater to ease discomfort overnight. He was personable, knowledgeable and took time to ensure we were happy with the decision we made. It wasn't an expense we had planned for but Najim eased the situation with his excellent customer service. He was happy to answer any questions we had and worked to ensure we got the best price and service possible. Veronika and Shemar arrived early the next day to replace our furnace with a new Daikin. They were also personable, professional and efficient. We feel fortunate to have Hamco to count on with HVAC needs. They have a great team of people who also seem to greatly appreciate how they are respected and treated by the company. It's wonderful to have a local family-owned business providing excellent service. We've been with Hamco (initial installs and service plans) for 17 years and plan to continue with them as needs arise.read more
    Laura House
    Laura House
    15:59 18 Jun 26
    We’ve used Hamco for years. Always reliable. Derek was prompt and efficient in the yearly maintenance of our furnace and air conditioner.
    Carol Belacca
    Carol Belacca
    03:31 17 Jun 26
    A heartfelt thank you to Josh and Adam for their very awesome service. I really appreciated the way they took the time to put my home back to again. I cannot recommend Hamco... to everyone, fantastic company.read more
    Paige Ogrodnick
    Paige Ogrodnick
    01:41 17 Jun 26
    Derek was great. Came out and did a full assessment and reassured us that our furnace was working fine. Awesome service always from Hamco.
    Domenic Di Pasquale
    Domenic Di Pasquale
    16:07 16 Jun 26
    Derek, came for my A/C check-repair, and furnace check. He was very knowledgeable and quick. All working very good now.Thank You !
    Ken Gibson
    Ken Gibson
    00:32 16 Jun 26
    Justin and Josh did an amazing job, they were organized and left my home clean after they were finished. Thank you Hamco!
    Niki Knuckles
    Niki Knuckles
    21:18 15 Jun 26
    Honest, expert advice! I asked HAMCO about adding a HEPA filter and UV light to my gas forced air furnace. Instead of selling me an expensive, unnecessary installation,... Andrew honestly advised that portable units would suit my needs much better. That level of integrity is rare. They truly care about the client over making a quick profit. Highly recommend!read more
    Harvey Levenstein
    Harvey Levenstein
    21:45 12 Jun 26
    Derek was excellent.
    Sean Lynch
    Sean Lynch
    15:45 12 Jun 26
    We had a leak coming from our furnace, so called to have it looked at. Christian showed up on time(doesn’t often happen in service industry)! He was really polite and... friendly. He was able to diagnose the problem quickly (blockage in drainage pipe), and had it fixed. I always have lots of questions about the problem and what to do going forward and he was able to answer them all. Whole visit took about 20 minutes. Very satisfied! Thanks HAMCO!read more
    Luigi Borghesan
    Luigi Borghesan
    00:22 12 Jun 26
    Excellent work as always. Cameron was very pleasant, professional efficient and knowledgeable. We have always been extremely pleased with HAMCO
    Cynthia McKnight
    Cynthia McKnight
    20:29 11 Jun 26
    Derek was great! He found the issue with our condensation pump and fixed it right away. He was friendly and professional. We’ve had a great experience with Hamco!
    Sharon Hachey
    Sharon Hachey
    16:23 11 Jun 26
    Derick did an annual inspection on our A/C today. Derick did a thorough job and we are very happy. He was very friendly and efficient. We couldn’t be more pleased with... Hamco’s service. Thank you Derick.read more
    Wail Dimassi
    Wail Dimassi
    19:01 09 Jun 26
    Thank you Margaret for setting up our Annual furnace inspection and cleaning to meet our availability. It is great to know that I never have to worry about scheduling this... as you are always on top of it.read more
    Elaine Burgess
    Elaine Burgess
    18:58 09 Jun 26
    Cameron was friendly, respectful and efficient and completed our AC service in no time. Great job!
    Tiffany George
    Tiffany George
    19:12 05 Jun 26
    Had a great experience, and he was very nice
    James Thomson
    James Thomson
    09:11 30 May 26
    Christian was very responsive in addressing the cooling issue relating to our AC.He explained in detail the operation of the unit and the repairs he completed.
    William Day
    William Day
    15:28 29 May 26
    On May 20 we had a Hamco tech, Cameron, come to check out our furnace & Aircon. He was very polite personable & professional. He is a credit to your organization.
    Emily Lyons
    Emily Lyons
    19:21 28 May 26
    We recently bought an older house. We have been experiencing numerous problems with the air filtering in our bathrooms and laundry rooms. Very through. Answered all of our... questions or concerns. Went through all of our vents, tested them, and explored all causes of the possible problems. Very, very, thankful he came by as he detected a carbon monoxide leak that we were unaware of due to faulty Reno’s by previous owners.read more
    Khalid Sayer
    Khalid Sayer
    18:32 28 May 26
    C M
    C M
    16:00 27 May 26
    Christian just did a service call for us - great service
    Randy McLelland
    Randy McLelland
    14:00 27 May 26
    Cameron was very friendly and courteous. He was knowledgeable when asked questions about temperature issues and gave suggestions to help resolve . Great Service.
    Barbara Hanel
    Barbara Hanel
    14:10 26 May 26
    Cameron was the technician sent by Hamco, to service my AC. He was pleasant, and engaging and did a thorough inspection and cleaning of my AC unit. Would definitely recommend... this company.read more
    Benjamin Smith
    Benjamin Smith
    14:47 25 May 26
    Qais Pasha
    Qais Pasha
    21:30 24 May 26
    Hamco sent over a technician on a Sunday to review a defective AC unit, Derrick was able to diagnose the motor issues and offer me options for replacement instantly. I was... grateful for the quick service and solution.read more
    Vansan 2.0
    Vansan 2.0
    12:21 24 May 26
    Very prompt service. Mr.Derek from Hamco visited us a few days back to diagnose the issue with heat pump. Explained clearly the issue and next steps for resolving the issue.... Very professional and great to deal with.Thanks Derek & Hamco for your service.read more
    Deborah Brown
    Deborah Brown
    23:33 21 May 26
    Derek was very nice. When I didn’t have a manual do he could check the thermostat program, he googled it and figured it out.
    Ishbel Roberts
    Ishbel Roberts
    22:33 20 May 26
    excellent service from Cameron
    G Wolfe
    G Wolfe
    22:59 16 May 26
    We had our AC repaired. Excellent, from start to finish. Communication was clear. Price was fair. Work was efficient and thorough. A special thank you to Derek.
    Elaine Daniels
    Elaine Daniels
    19:41 14 May 26
    Derek was friendly and did the work to fireplace and furnace. Very informative
    Mike Moulden
    Mike Moulden
    16:23 14 May 26
    Cameron provided us with the best service experience in our dealings with Hamco over the last 25 years. Hamco are a terrific outfit who over this time have supplied two gas... furnaces and three furnaces and two air conditioners.They are a solid outfit who you can trust to look after your needs.read more
    Bill Pearce
    Bill Pearce
    20:16 13 May 26
    Hamco's technician, Cameron did annual maintenance on my AC today. Very happy with his work. He was courteous, efficent and thorough.
    John
    John
    15:33 13 May 26
    I've been dealing with Hamco now for 26 years - on my 3rd house and have only had good experiences with Hamco. An example of how their staff go above and beyond is during the... installation of my furnace in 2006, my elderly neighbour complained about the wasps flying around her house. The furnace installers noticed where they were going in and resolved the problem.I get the air-conditioner checked annually and the technicians are always professional and knowledgeable. A special shout-out to Cameron who looked after the inspection today and explained the readings today.I would, without reservation, recommend Hamco to anyone needing heating and cooling equipment.read more
    Stephen White
    Stephen White
    16:27 12 May 26
    After doing a significant amount of research I contracted with HAMCO to install a heat pump to replace my aging air conditioner, and a new furnace. Andrew Vasilak handled... the transaction, and he was terrific to deal with. He was helpful, informative, and there were no high pressure sales tactics. The quote was identical to what I paid.The installation of the products was superb! Both my new heat pump and furnace were installed in one day. The four men who did the installation were on time, dependable and thorough. Since the installation the heat pump has been superb. Air quality in the house is significantly better, and the air temperature has been constant. I had one minor problem, and called HAMCO late at night on a long holiday weekend for assistance. I had a return phone call back in five minutes, a repairman out to my house the next morning, and the problem was fixed quickly. The service technician who dealt with my issue was professional, polite and responsive.HAMCO has been around since 1946. They are an established Hamilton company that offers old fashioned, high quality service at a fair price. I would not hesitate to recommend them.Update: May 12/26I just had HAMCO into perform an annual inspection of my heat pump, furnace and water heater. Christian did an amazing job! He was professional, thorough and extremely detailed. He took the time to explain what he was doing, and his answers to my questions were clear and concise.I continue to be impressed with HAMCO. They do amazing work, and it is reassuring to know you can depend upon them when necessary.read more
    Catherine Kelemen
    Catherine Kelemen
    00:38 09 May 26
    We were very happy with the professional service Derek provided in servicing our furnace and air conditioner. He identified some issues and worked quickly with the head... office to resolve them promptly. His communication skills were excellent both by telephone and in person. It was a pleasure dealing with him.read more
    Dawn Spencer
    Dawn Spencer
    23:54 07 May 26
    Very pleased with Hajim. He was courteous and did a great job. He was very thorough with my old furnace and explained his findings.2026. Cameron and Hajim did an... excellent job. Allu questions were answered. Thanks for your great service.read more
    Tracey Ryan
    Tracey Ryan
    13:45 07 May 26
    Hamco is part one of the contractors hired by our General Contractor/designer; 215 Design Co. Derek came to complete the work required and I have to say I was very... impressed. He came in and did the work efficiently, he was very polite and overall nice to deal with. Thank you Derek!read more
    Lola MacMilllan
    Lola MacMilllan
    00:24 05 May 26
    Everyone from the office staff, to owner, to tech Najim were a pleasure to deal with. Would hire again and would definitely recommend to friends and family. Thank you Hamco... for keeping us cool this summer!read more
    Brandon Schofield
    Brandon Schofield
    21:42 27 Apr 26
    Excellent. Najim was extremely helpful. It’s great to work with a company that knows what they’re doing. Highly recommend.
    Alice Schmuck
    Alice Schmuck
    19:15 27 Apr 26
    Excellent service. The technican Derek did an excellent job.
    Anas Mustafa
    Anas Mustafa
    18:19 27 Apr 26
    Hamco installed my AC unit about 7–8 years ago, and they’ve been great to work with ever since. Their service is consistently excellent. Steve recently came by to... troubleshoot an issue, and he was incredibly knowledgeable and professional. He went above and beyond, even helping with a couple of other concerns. Outstanding service all around.read more
    Orland Howard
    Orland Howard
    17:41 23 Apr 26
    April 22/26 Wellington square co operative inc. resident.Maintenance inspection by: Najim.I found Najim to be very peronal,courteous, polite, and professionalty... informative. Task oriented and timely. I have had Najim work in my residence before as well as other HAMCO employees andinteraction with conntact personel on other inspections and can say the same for them had I known about employee reviews. All good representaives of HAMCO. Thank you HAMCO and employees.read more
    Samantha K
    Samantha K
    00:50 23 Apr 26
    Had a maintenance service done on my HVAC system by Najim and was very impressed. He was on time, professional, and very thorough. He checked everything carefully, cleaned... the unit, and made sure it was running efficiently. Took the time to explain what was done and answered all my questions. Highly recommend Najim!!read more
    Patrick
    Patrick
    15:45 22 Apr 26
    Great experience. Derek was professional, friendly, clearly has lots of experience, and answered all my questions. Highly recommend.
    Patricia Baker
    Patricia Baker
    14:45 22 Apr 26
    Derek, the service person, is one of the best maintenance people we have encountered in many different countries. He quickly identified the problem with our hot water heater... temperature control, explained the situation, arranged for a replacement and was friendly throughout. Thank you Derek and Hamco.read more
    Astibus Gaming
    Astibus Gaming
    00:20 22 Apr 26
    Najim did our AC maintenance today and he was very knowledgeable, professional and polite. I am very happy with his services, will always request for Najim going forward!... Thank you Hamco!read more
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    What To Expect During An Air Conditioner Service Call

    Air conditioning breakdowns happen, and when they do the experts at HAMCO are here to help homeowners in Hamilton and its surrounding areas with a 24/7 live phone line, no recordings or voicemails for after business hours.  When you call for air conditioning service, you can expect to be greeted by one of our friendly and professional staff members. 

    Once we get a sense of what you need and what issues you may be dealing with, we dispatch one of our expert technicians to your home. You can expect our technicians to be courteous, friendly, professional, and knowledgeable. They will properly inspect and diagnose your air conditioner’s issues, then begin to take the next steps in ensuring that your issue is fixed as soon as possible. 

    During our air conditioning service appointments, we welcome questions, concerns, and feedback from our customers to help ensure they understand the process and are getting the best service possible.

    AC Troubleshooting Checklist

    If your air conditioner isn’t working, try this troubleshooting checklist before calling for emergency AC repair:

    • Confirm the thermostat is set to Cool.
    • Check and replace thermostat batteries if necessary.
    • Verify that the power switch is turned on.
    • Ensure vents and registers throughout your home clear of obstructions.
    • Replace or clean the furnace filter if it’s more than one month old.
    • Check the breaker to see if a fuse has been tripped.
    • Ensure the A/C cover is removed from the unit.
    • Clear debris or obstructions from around the outdoor condenser.

    If the above suggestions didn’t resolve your air conditioner issue, call HAMCO so a professional can diagnose the problem.

    Do I Need a New Air Conditioner? When to Buy a New AC Unit

    Investing in an air conditioner is a significant decision. Homeowners typically aim to maximize its lifespan before considering a replacement. While prolonging the lifespan of your AC is essential, knowing when it’s time to replace it is equally important.

    The Average Lifespan of an AC

    On average, a household central air conditioner or ductless air conditioner lasts between 10-15 years.

    It Might be Time to Buy a New AC If…

    • You’re experiencing uneven cooling throughout your home.
    • Despite regular operation, the cooling is not adequate.
    • There’s frozen ice near the coil above the furnace or outside the outdoor condenser.
    • You notice an increase in energy bills and consumption.
    • There are strange sounds or unpleasant burnt smells coming from your AC.
    • The outdoor fan won’t turn on.
    • You have more frequent breakdowns or repairs.

    Importance Of Annual Air Conditioner Maintenance

    Annual air conditioning maintenance and service is important and beneficial for several reasons. In fact, scheduling regular maintenance will actually save you money in the long run. The benefits of air conditioner maintenance include: 

    • Lower monthly cooling bills 
    • A reduced carbon footprint 
    • Fewer repair appointments 
    • A lowered risk of future breakdowns 
    • Better air quality 
    • More even cooling 
    • A prolonged air conditioner lifespan

    Facing A Night Without Air Conditioning

    Even well-maintained air conditioners can at times break down, and if you end up faced with a night without air conditioning in the summer, here are a few things you can do to help have the most comfortable sleep possible: 

    • Call for repair immediately. If you must wait for your appointment due to a surplus of calls, make sure to book a set time for the morning for your repair appointment
    • Wear cool fabrics to bed and use cool fabrics for sheets like bamboo, silk, cotton, or satin 
    • Drink water frequently 
    • Use fans to your advantage (this includes rotating fans, ceiling fans, kitchen fans, and bathroom fans) 
    • Mist yourself with cool water and take a cool shower or bath when possible

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    Make Every Day Earth Day

    This Saturday, Canadians nationwide will celebrate Earth Day. Being mindful of our planet is very important to HAMCO Heating and Cooling Ltd. and we encourage the Hamilton community to take a moment on April 22nd to do one thing to make our planet a better place to...

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